A1286 won't turn on - black screen, have reset SMC, power light on

Question

MacBook Pro 15" Unibody 2008 하반기 및 2009 상반기

2008년 10월 출시 / 2.4, 2.53, 2.66, 2.8 또는 2.93 GHz Core 2 Duo 프로세서

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Chris Lozeau @chrislozeau

평판: 13

1

게시일: 2018년 8월 14일

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A1286 won't turn on - black screen, have reset SMC, power light on

MacBook Pro A1286. Removable battery and hard drive.
Battery charges fine. LED indicators show charge level. Power adaptor shows orange when charging, green when charged.
When turning on, power LED lights up, the chime can be heard, but nothing on the screen (no flashes, etc.). Keyboard backlight does not light up; caps lock key does not light up when pressed.

What I've tried:

Have reset SMC with and without taking the battery out first; charging cable responds with green light
Have tried holding Command-Option-P-R startup as suggested in another thread
Have plugged a HDMI cable in to a TV, but nothing shows

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예 아니요

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댓글 2개:

Can you tell us what happened to the system beforehand.

Dan 의 2018년 8월 15일

Hi Dan. It's my friend's MacBook, and he says nothing happened to it.

Chris Lozeau 의 2018년 8월 16일

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Hi Dan. It's my friend's MacBook, and he says nothing happened to it. — Chris Lozeau

Dan @danj 평판: 479.4k Self employed contract worker 35 329 971 · Answer 1 · 2018-08-17T06:42:24-07:00

Dan @danj

평판: 479.4k

Self employed contract worker

35

329

971

게시일: 2018년 8월 17일

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Not much to work with here. There are just to many possibilities. I think you’ll need to find someone local who has a good knowledge of the MacBook Pro’s to see what they say. It could be simple or it could be expensive if the logic board is bad.

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예 아니요

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댓글 1개:

Thanks Dan, will do

Chris Lozeau 의 2018년 8월 19일

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MacBook Pro 15" Unibody 2008 하반기 및 2009 상반기

A1286 won't turn on - black screen, have reset SMC, power light on

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